Keep up with training your kids! They will not be perfect, but it will help. When I was younger (growing up in the, like, 90's), whenever my mom would hear me misuse "like", she would tell me. Just a "you said 'like' again" inserted into the conversation. Made me much more conscious of what words were pouring out of my mouth!

I laugh at how some people say "suite" like "suit". Lovely bedroom suit!